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Computational simulation of gas flow and heat transfer near an immersed object in fluidized beds

Gao, Weimin, Kong, Lingxue and Hodgson, Peter 2007, Computational simulation of gas flow and heat transfer near an immersed object in fluidized beds, Advances in engineering software, vol. 38, no. 11-12, pp. 826-834, doi: 10.1016/j.advengsoft.2006.08.046.

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Title Computational simulation of gas flow and heat transfer near an immersed object in fluidized beds
Author(s) Gao, Weimin
Kong, LingxueORCID iD for Kong, Lingxue orcid.org/0000-0001-6219-3897
Hodgson, Peter
Journal name Advances in engineering software
Volume number 38
Issue number 11-12
Start page 826
End page 834
Publisher Elsevier Applied Science
Place of publication Barking, Essex, England
Publication date 2007-02-23
ISSN 0965-9978
Keyword(s) heat transfer
fluid dynamics
computational simulation
modelling
fluidized beds
conduction
convection
Summary To improve the understanding of the heat transfer mechanism and to find a reliable and simple heat-transfer model, the gas flow and heat transfer between fluidized beds and the surfaces of an immersed object is numerically simulated based on a double particle-layer and porous medium model. The velocity field and temperature distribution of the gas and particles are analysed during the heat transfer process. The simulation shows that the change of gas velocity with the distance from immersed surface is consistent with the variation of bed voidage, and is used to validate approximately dimensional analysing result that the gas velocity between immersed surface and particles is 4.6Umf/εmf. The effects of particle size and particle residence time on the thermal penetration depth and the heat-transfer coefficients are also discussed.
Language eng
DOI 10.1016/j.advengsoft.2006.08.046
Field of Research 091505 Heat and Mass Transfer Operations
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2007, Elsevier Ltd
Persistent URL http://hdl.handle.net/10536/DRO/DU:30007261

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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